201909985 is an odd 9-digits composite number following 201909984
and preceding 201909986 . In scientific notation, it is written as 2.01909985 × 10^8.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 154504944 positive integers (up to 201909985) that are relatively prime to 201909985.
201909985 has 4 divisors, whose sum is 203665840
The reverse of 201909985 is 589909102
Previous prime number is 115
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
two hundred one million nine hundred nine thousand nine hundred eighty-five
Scientific notation
2.01909985 × 10^8
Engineering notation
2.01909985 × 10^6
Prime Factorization
115 × 1755739
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
201909985
Product of the distinct prime numbers
The prime factorization of 201909985 is 115 × 1755739.
Since it has a total of 2 prime factors.
3 , 7 , 49 , 24 , 105 , 463 , 2131 , 2216 , 35863 , 45157 , 977887 , 602443 , 5680364 , 9889387 , 10988917 , 24122187 , 756534602 , 503433230 , 8498579646 , 845657128
n×2
403819970
n×3
605729955
n×4
807639940
n×5
1009549925
n÷2
100954992.5
n÷3
67303328.333333
n÷3
50477496.25
n÷5
40381997
n2
40767642042700225
n3
8.231393993327E+24
n4
1.6620006377217E+33
n5
3.3557452383239E+41
2 √n
14209.503334037
3 √n
586.65926281261
4 √n
119.2036213126
5 √n
45.817518017154
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-201909984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 201909985 can be divided by 4 positive divisors.
The sum of these divisors (counting 201909985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100000010001110011011100001
3
Ternary
112001221002102121
4
Quaternary
30002032123201
5
Quinary
403142104420
6
Senary
32011344241
8
Octal
1402163341
10
Decimal
201909985
12
Duodecimal
57752081
16
Hexadecimal
c08e6e1
20
Vigesimal
331iej5
36
Base36
3c7mqp
md5
bbe8b02b37e713b6087521da66435fd9
sha1
f18dd752891e833a9a02acb6dc839bea5f2787c0
sha256
c7805f95defe2bb6b1bec94496fc3ef71c65d3dd01497e74e8f8403f4c620f4f
sha512
934be3146522fe359a8ceb79f334f4f3b76c63de4fa1760a74e36acbd22ee61b9aa803d2374ec45dc397c7e37e611919440a00fcfc4c8e86307f20be740d432f
ripemd-160
108278f69903f2bd40ceaae5baf09976defadcac
Diameter
403819970
Circumference
1268637851.1249
Area
1.2807532474553E+17
Volume
3.4479582530986E+25
Surface area
5.123012989821E+17
Circumference
1268637851.1249
Perimeter
807639940
Area
40767642042700225
Diagonal
285543839.16555
Surface area
244605852256201350
Volume
8.231393993327E+24
Space diagonal
349718352.57547
Perimeter
605729955
Area
1.7652906830684E+16
Altitude
174859176.28773
Surface area
1.7652906830684E+16
Volume
9.7007908521662E+23
Height
95181279.721849